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Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 73

Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German. Mean line confidence on this page: 0.91.

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The machine reads it as

  1. nhole aperture is four tnches, and length an hundred Fcct,
  2. IE excecds nOt 2 45, Or 3. And in a Velescope nhose
  3. aperture is tro Tnches, and lenoch 20 or 30 Feet, it may
  4. BC s’Or 6’and scarce abore. And chis Ansivers well EO
  5. Experience: For Pome Asronomers have found che Dia-
  6. Meters OF Fhe AXE STarS, in Telescopes oF BCtWWCCn EvenEy
  7. and lixey Fcet in leneth, eo bc abour + Or 5 Or ac most
  8. S in Diameter. But it che Fre-Clals be tincted Faincly
  9. wich che lnoke oF a L amp or Torch, eo obscure the Lighe
  10. OF che Scar, the Fainter Liohe in the circumterence oF the
  11. Star ceales co be risible, and the Scar (it che Class be suffici-
  12. enely Coiled mich Cinoke) appears lomechins more like aNI2-
  13. themarical Poinc. And FOr the Came reaION, FHC CnOROUS
  14. part oFche Lighe in che Circumterence ot every lucid Poine
  15. oughe co be lels discernable in Phorter Pelelcopes than in
  16. longer, becaule che Phorcer transnit lels Lighe co the Fyc.
  17. Nou il e suppole che sensible Image oF a lucid pOint,
  18. to be eren 250 times narrover than che aperture ot che
  19. Clals: yet vere ic noc for the ditterent retrangibiliey ot che
  20. Rays, ies breadch in an 100 Foor Pelescope whose aperture
  21. is 4 Inches woula be buc , 6ô Parts oF an Tuch, 25 is ma-
  22. nifest by che foregoins Computation. And cheretore in
  23. chis Cale che greatest Errors arising from che (pherical Figure
  24. ot che Clals, vould be to che greatest sensible Errors ari-
  25. Cins trom che differene retrangibilier oF che RaYS a5 360̂0000
  26. EO at nost, thac is onty 25 1 +0 1826. And chis sutt-
  27. cientr Phews chac ic is noc che spherical Pioures ot Classes
  28. buc che differene retrangibilier of ihe Rays irhich hinders thc
  29. perfection ot Pelelcopes.
  30. There is anocher Rroument by irhich ic may appear chac
  31. the different retranoibilier oF Rars, is the cruc Cause ot che
  32. imverfection of Telescopes. For che Errors of che Rays
  33. aritins trom che spherical Figures of Object-Clalles, are a5
  34. che

Cite

Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 73. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/1677894601:0083?run=74